Dynamic range

The main sticking point of a smaller four thirds sensor when compared to the larger APS-C format is that the dynamic range is not as wide – typically by at least 2EV.

This extra 2 stops of light captured by the APS-C format is not so much of an issue when a scene has a fairly even tone, but when shooting an overcast landscape, for instance, more highlight detail will be lost if exposing correctly for the midtones.

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